Seiko Cal. 3877 - 364

Released in 1981, the Cal. 3877 with design code 364 was part of Seiko's domestic market collection. With its 21mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-2527bda54bfc]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1981

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